Production of seamless steel pipes
Release time:
2025-05-27
Seamless steel pipe is a long steel material with a hollow cross-section and no joints around it. Steel pipes have hollow cross-sections and are used as pipes for conveying fluids, such as pipes for conveying oil, natural gas, coal gas, water and certain solid materials.
Seamless steel pipe is a long steel material with a hollow cross-section and no joints around it. Steel pipes have hollow cross-sections and are used as pipes for conveying fluids, such as pipes for conveying oil, natural gas, coal gas, water and certain solid materials.
The production methods of seamless steel pipes are roughly divided into oblique rolling method (Monnesmann method) and extrusion method.
The oblique rolling method (Monnesmann method) is to first perforate the tube blank with an inclined roll, and then extend it with a rolling mill. This method produces fast, but has high requirements for the workability of the pipe blank, and is mainly suitable for the production of carbon steel and low alloy steel pipes.
The extrusion method is to perforate the pipe billet or steel ingot with a perforator, and then extrude it into steel pipes with an extruder. This method is less efficient than the oblique rolling method and is suitable for the production of high-strength alloy steel pipes.
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